I believe Gen-Right makes the tire carrier that bolts onto the body, similar to the old style bronco's had.
You take the tire carrier off the gate and use their product. But this puts stress on the body since there isn't any kind of reinforcement on the inside of the body panels to help suspend a tire.
The best bet is to get a good quality rear bumper and tire carrier combo, or if you are creative you can build your own. Just need some steel and a welder and a creative mind, anything is possible then.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...